require 'rvg/rvg'

Magick::RVG.dpi = 90

rvg = Magick::RVG.new(12.cm, 4.cm) do |canvas|
  canvas.viewbox(0, 0, 1200, 400)
  canvas.background_fill = 'white'
  canvas.desc = 'Example circle01 - circle filled with red and stroked with blue'

  # Show outline of canvas using the 'rect' method
  canvas.rect(1195, 395, 1, 1).styles(fill: 'none', stroke: 'blue', stroke_width: 2)

  canvas.circle(100, 600, 200).styles(fill: 'red', stroke: 'blue', stroke_width: 10)
end

rvg.draw.write('circle01.gif')
